<template>
	<view class="container">
		<view class="left-bottom-sign"></view>
		<view class="right-top-sign"></view>
		<!-- 设置白色背景防止软键盘把下部绝对定位元素顶上来盖住输入框等 -->
		<view class="wrapper">
			<view class="left-top-sign">LOGIN</view>
			<!-- <button class="confirm-btn" @click="login" :disabled="logining">登录</button> -->
			<button class='confirm-btn' @click="appLoginWx" >授权登录</button>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				code: null
			}
		},
		onLoad() {
			if (uni.getStorageSync('uni_id_token_expired') > Date.now()) {
				uni.switchTab({
					url: '/pages/index/index'
				})
			}
		},
		methods: {
			appLoginWx() {
				let db = uniCloud.database();
				uni.getUserProfile({
					  desc: '显示用户名',
				      success: async function (infoRes) {
						  await uniCloud.callFunction({
						  	name: 'get-uid'
						  }).then( res=> {
							  db.collection('uni-id-users')
							    .where( `_id == '${res.result.userInfo._id}'`)
								.update({
									nickname: infoRes.userInfo.nickName,
									avatar: infoRes.userInfo.avatarUrl
								})
						  })
				      }
				    });
				this.login()
			},
			login() {
				let vm = this;
				uni.showLoading({
					title: '登录中...',
					mask: true
				})
				new Promise((resolve, reject) => {
					uni.getProvider({
						service: 'oauth',
						success(res) {
							resolve(res.provider)
						},
						fail(err) {
							reject(new Error(err.errMsg))
						}
					})
				}).then((provider) => {
					return new Promise((resolve, reject) => {
						uni.login({
							provider,
							success: (res) => {
								resolve({
									code: res.code,
									provider
								})
							},
							fail: (err) => {
								reject(new Error(err.errMsg))
							}
						})
					})
				}).then(({
					code,
					provider
				}) => {
					return uniCloud.callFunction({
						name: 'user-center',
						data: {
							action: provider.indexOf('weixin') > -1  ? 'loginByWeixin' : 'loginByAlipay',
							params: {
								code
							}
						}
					})
				}).then((res) => {
					if (res.result.code === 0) {
						
						uni.hideLoading()
						// 如果使用2.7.15及以上版本建议存为uni_id_token
						uni.setStorageSync('uni_id_token', res.result.token)
						uni.setStorageSync('uni_id_token_expired', res.result.tokenExpired)
						uni.switchTab({
							url: '/pages/index/index'
						})
					} else {
						throw new Error(res.result.msg)
					}
				}).catch((err) => {
					uni.hideLoading()
					uni.showModal({
						content: err.message || '登录失败',
						showCancel: false
					})
				})

			}
		}
	}
</script>

<style lang="scss">
	page{
		background: #fff;
	}
	.container{
		padding-top: 115px;
		position:relative;
		width: 100vw;
		height: 100vh;
		overflow: hidden;
		background: #fff;
	}
	.wrapper{
		position:relative;
		z-index: 90;
		background: #fff;
		padding-bottom: 40upx;
	}
	.back-btn{
		position:absolute;
		left: 40upx;
		z-index: 9999;
		padding-top: var(--status-bar-height);
		top: 40upx;
		font-size: 40upx;
		color: $font-color-dark;
	}
	.left-top-sign{
		font-size: 120upx;
		color: $page-color-base;
		position:relative;
		left: -16upx;
	}
	.right-top-sign{
		position:absolute;
		top: 80upx;
		right: -30upx;
		z-index: 95;
		&:before, &:after{
			display:block;
			content:"";
			width: 400upx;
			height: 80upx;
			background: #b4f3e2;
		}
		&:before{
			transform: rotate(50deg);
			border-radius: 0 50px 0 0;
		}
		&:after{
			position: absolute;
			right: -198upx;
			top: 0;
			transform: rotate(-50deg);
			border-radius: 50px 0 0 0;
			/* background: pink; */
		}
	}
	.left-bottom-sign{
		position:absolute;
		left: -270upx;
		bottom: -320upx;
		border: 100upx solid #d0d1fd;
		border-radius: 50%;
		padding: 180upx;
	}
	.input-content{
		padding: 0 60upx;
	}
	.input-item{
		display:flex;
		flex-direction: column;
		align-items:flex-start;
		justify-content: center;
		padding: 0 30upx;
		background:$page-color-light;
		height: 120upx;
		border-radius: 4px;
		margin-bottom: 50upx;
		&:last-child{
			margin-bottom: 0;
		}
		.tit{
			height: 50upx;
			line-height: 56upx;
			font-size: $font-sm+2upx;
			color: $font-color-base;
		}
		input{
			height: 60upx;
			font-size: $font-base + 2upx;
			color: $font-color-dark;
			width: 100%;
		}	
	}
	
	.confirm-btn{
		width: 630upx;
		height: 76upx;
		line-height: 76upx;
		border-radius: 50px;
		margin-top: 70upx;
		background: $uni-color-primary;
		color: #fff;
		font-size: $font-lg;
		&:after{
			border-radius: 100px;
		}
	}
	.forget-section{
		font-size: $font-sm+2upx;
		color: $font-color-spec;
		text-align: center;
		margin-top: 40upx;
	}
	.register-section{
		position:absolute;
		left: 0;
		bottom: 50upx;
		width: 100%;
		font-size: $font-sm+2upx;
		color: $font-color-base;
		text-align: center;
		text{
			color: $font-color-spec;
			margin-left: 10upx;
		}
	}
</style>
